CVE-2026-96951

Windows Shell Security Feature Bypass Vulnerability

State: Published
Severity: 8.8 High
Published: Oct 13, 2026
Updated: Oct 31, 2026
Reserved: Sep 23, 2026

Description

Improper neutralization of special elements used in a command ('command injection') in Windows Shell allows an unauthorized attacker to bypass a security feature over a network.

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C	microsoft

Weaknesses

CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')

Affected Products

Product	Versions
Microsoft Edge (Chromium-based)Microsoft	1.0.0.0 to before 154.0.4258.62Affected
Outlook.comMicrosoft	1.0.0 to before 20260925.100Affected
Windows 10 Version 1607Microsoft	10.0.14393.0 to before 10.0.14393.9612Affected
Windows 10 Version 1809Microsoft	10.0.17763.0 to before 10.0.17763.9376Affected
Windows 10 Version 21H2Microsoft	10.0.19044.0 to before 10.0.19044.7807Affected
Windows 10 Version 22H2Microsoft	10.0.19045.0 to before 10.0.19045.7807Affected
Windows 11 version 23H2Microsoft	10.0.22631.0 to before 10.0.22631.7652Affected
Windows 11 Version 23H2Microsoft	10.0.22631.0 to before 10.0.22631.7652Affected
Windows 11 Version 24H2Microsoft	10.0.26100.0 to before 10.0.26100.9711Affected
Windows 11 Version 25H2Microsoft	10.0.26200.0 to before 10.0.26200.9711Affected
Windows 11 version 26H1Microsoft	10.0.28000.0 to before 10.0.28000.3231Affected
Windows 11 Version 26H2Microsoft	10.0.26300.0 to before 10.0.26300.9711Affected
Windows Server 2012 R2Microsoft	6.3.9600.0 to before 6.3.9600.23470Affected
Windows Server 2012 R2 (Server Core installation)Microsoft	6.3.9600.0 to before 6.3.9600.23470Affected
Windows Server 2016Microsoft	10.0.14393.0 to before 10.0.14393.9612Affected
Windows Server 2016 (Server Core installation)Microsoft	10.0.14393.0 to before 10.0.14393.9612Affected
Windows Server 2019Microsoft	10.0.17763.0 to before 10.0.17763.9376Affected
Windows Server 2019 (Server Core installation)Microsoft	10.0.17763.0 to before 10.0.17763.9376Affected
Windows Server 2022Microsoft	10.0.20348.0 to before 10.0.20348.5761Affected
Windows Server 2025Microsoft	10.0.26100.0 to before 10.0.26100.33650Affected
Windows Server 2025 (Server Core installation)Microsoft	10.0.26100.0 to before 10.0.26100.33650Affected

References

Windows Shell Security Feature Bypass Vulnerabilityvendor-advisorypatch
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-96951government-resource

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